Remove doc reference to $data metadata table

[kevinjqliu]

Description

$data metadata table was removed in v411 in this PR for both Iceberg and Delta Lake

Remove reference to it in the docs

Additional context and related issues

Release notes

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# Section
* Fix some things. ({issue}`issuenumber`)

[cla-bot]

Thank you for your pull request and welcome to the Trino community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. Continue to work with us on the review and improvements in this PR, and submit the signed CLA to [email protected]. Photos, scans, or digitally-signed PDF files are all suitable. Processing may take a few days. The CLA needs to be on file before we merge your changes. For more information, see https://github.com/trinodb/cla

[cla-bot]

Thank you for your pull request and welcome to the Trino community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. Continue to work with us on the review and improvements in this PR, and submit the signed CLA to [email protected]. Photos, scans, or digitally-signed PDF files are all suitable. Processing may take a few days. The CLA needs to be on file before we merge your changes. For more information, see https://github.com/trinodb/cla

[ebyhr]

Thanks for catching this. Please squash commits into one and capitalize the commit title.
https://github.com/trinodb/trino/blob/master/.github/DEVELOPMENT.md#format-git-commit-messages

[cla-bot]

Thank you for your pull request and welcome to the Trino community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. Continue to work with us on the review and improvements in this PR, and submit the signed CLA to [email protected]. Photos, scans, or digitally-signed PDF files are all suitable. Processing may take a few days. The CLA needs to be on file before we merge your changes. For more information, see https://github.com/trinodb/cla

[kevinjqliu]

@ebyhr I squash the commits together and force pushed. PTAL.

And I also already emailed [[email protected]](mailto:[email protected])